Santa Fe Regional ITS Architecture Update

Interfaces:

Collect Traffic Surveillance

• The center shall monitor, analyze, and store traffic sensor data (speed, volume, occupancy) collected from field elements under remote control of the center.
• The center shall monitor, analyze, and distribute traffic images from CCTV systems under remote control of the center.
• The center shall monitor, analyze, and store multimodal crossing and high occupancy vehicle (HOV) lane sensor data under remote control of the center.
• The center shall distribute road network conditions data (raw or processed) based on collected and analyzed traffic sensor and surveillance data to other centers.
• The center shall respond to control data from center personnel regarding sensor and surveillance data collection, analysis, storage, and distribution.
• The center shall maintain a database of surveillance and sensors and the freeways, surface street and rural roadways, e.g. where they are located, to which part(s) of the network their data applies, the type of data, and the ownership of each link (that is, the agency or entity responsible for collecting and storing surveillance of the link) in the network.
• The center shall support an interface with a map update provider, or other appropriate data sources, through which updates of digitized map data can be obtained and used as a background for traffic data.

TMC Freeway Management

• The center shall remotely control systems to manage use of the freeways, including ramp meters, mainline metering, and lane controls.
• The center shall collect operational status from ramp meters, mainline metering, and lane controls and compare against the control information sent by the center.
• The center shall collect fault data from ramp meters, mainline metering, and lane controls.
• The center shall implement control strategies, under control of center personnel, on some or all of the freeway network devices (e.g. ramp meters, mainline metering, and lane controls), based on data from sensors monitoring traffic conditions upstream, downstream, and queue data on the ramps themselves.

TMC Regional Traffic Management

• The center shall exchange traffic information with other traffic management centers including incident information, congestion data, traffic data, signal timing plans, and real-time signal control information.

TMC Environmental Monitoring

• The center shall remotely control environmental sensors that measure road surface temperature, moisture, icing, salinity, and other measures.
• The center shall remotely control environmental sensors that measure weather conditions including temperature, wind, humidity, precipitation, and visibility.
• The center shall assimilate current and forecast road conditions and surface weather information using a combination of weather service provider information (such as the National Weather Service and value-added sector specific meteorological services), data from roadway maintenance operations, and environmental data collected from sensors deployed on and about the roadway.
• The center shall provide weather and road condition information to weather service providers and center personnel.
• The center shall respond to control data from center personnel regarding environmental sensor control and weather data collection and processing.

TMC Traffic Information Dissemination

• The center shall remotely control dynamic messages signs for dissemination of traffic and other information to drivers.
• The center shall remotely control driver information systems that communicate directly from a center to the vehicle radio (such as Highway Advisory Radios) for dissemination of traffic and other information to drivers.
• The center shall collect operational status for the driver information systems equipment (DMS, HAR, etc.).
• The center shall collect fault data for the driver information systems equipment (DMS, HAR, etc.) for repair.
• The center shall retrieve locally stored traffic information, including current and forecasted traffic information, road and weather conditions, traffic incident information, information on diversions and alternate routes, closures, and special traffic restrictions (lane/shoulder use, weight restrictions, width restrictions, HOV requirements), and the definition of the road network itself.
• The center shall distribute traffic data to maintenance and construction centers, transit centers, emergency management centers, and traveler information providers.
• The center shall distribute traffic data to the media; the capability to provide the information in both data stream and graphical display shall be supported.
• The center shall provide the capability for center personnel to control the nature of the data that is available to non-traffic operations centers and the media.

Traffic Maintenance

• The center shall collect and store sensor (traffic, pedestrian, multimodal crossing) operational status.
• The center shall collect and store CCTV surveillance system (traffic, pedestrian) operational status.
• The center shall collect and store sensor (traffic, pedestrian, multimodal crossing) fault data and send to the maintenance center for repair.
• The center shall collect and store CCTV surveillance system (traffic, pedestrian) fault data send to the maintenance center for repair.
• The center shall collect environmental sensor operational status.
• The center shall collect environmental sensor equipment fault data and send to the maintenance center for repair.
• The center shall exchange data with maintenance centers concerning the reporting of faulty equipment and the schedule/status of their repair. Information exchanged includes details of new equipment faults, and clearances when the faults are cleared.
• The center shall support an interface with a map update provider, or other appropriate data sources, through which updates of digitized map data can be obtained and used as a background for traffic maintenance data.

MCM Environmental Information Collection

• The center shall remotely control environmental sensors that measure road surface temperature, moisture, icing, salinity, and other measures.
• The center shall remotely control environmental sensors that measure weather conditions including temperature, wind, humidity, precipitation, and visibility.
• The center shall collect environmental probe data (air temperature, exterior light status, wiper status, traction control status, etc.) from short range communications equipment that communicates with appropriately equipped probe vehicles.
• The center shall assimilate current and forecast road conditions and surface weather information using a combination of weather service provider information (such as the National Weather Service and value-added sector specific meteorological services), data from traffic and traveler information providers, and environmental data collected from sensors deployed on and about the roadway as well as the fleet of maintenance and construction vehicles and the broader population of vehicle probes.
• The center shall provide weather and road condition information to weather service providers and center personnel.
• The center shall respond to control data from center personnel regarding environmental sensor control and weather data collection and processing.
• The center shall collect operational status for the roadside and vehicle-based environmental sensor equipment.
• The center shall collect fault data for the roadside and vehicle-based environmental sensor equipment for repair.
• The center shall collect fault data for the roadside environmental sensor equipment for repair.